RAW MATERIAL FOR ZIRCONIA/MULLITE REFRACTORY AND PLATE BRICK
Provided is a zirconia-mullite refractory raw material which is less likely to undergo alternation and microstructural degradation under high-temperature conditions, and low in thermal expansion rate, so as to have thermal shock resistance and corrosion resistance. The zirconia-mullite refractory ra...
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| creator | TAKENAMI MASAKO AKAMINE KEIICHIRO |
| description | Provided is a zirconia-mullite refractory raw material which is less likely to undergo alternation and microstructural degradation under high-temperature conditions, and low in thermal expansion rate, so as to have thermal shock resistance and corrosion resistance. The zirconia-mullite refractory raw material comprises crystalline zirconia and mullite as primary components, with the remainder being corundum and/or a matrix glass, wherein the crystalline zirconia includes a eutectic zirconia crystal having a grain size of 1.0 μm or less, and has a maximum grain size of 30 μm or less, and the matrix glass is contained in an amount of 5 mass % or less. The zirconia-mullite refractory raw material has a chemical composition comprising 30 to 55 mass % of ZrO2, 30 to 55 mass % of Al2O3 and 10 to 25 mass % of SiO2, wherein each of the chemical components falls within a primary phase region of ZrO2 in an Al2O3-ZrO2-SiO2 system phase diagram. |
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The zirconia-mullite refractory raw material comprises crystalline zirconia and mullite as primary components, with the remainder being corundum and/or a matrix glass, wherein the crystalline zirconia includes a eutectic zirconia crystal having a grain size of 1.0 μm or less, and has a maximum grain size of 30 μm or less, and the matrix glass is contained in an amount of 5 mass % or less. The zirconia-mullite refractory raw material has a chemical composition comprising 30 to 55 mass % of ZrO2, 30 to 55 mass % of Al2O3 and 10 to 25 mass % of SiO2, wherein each of the chemical components falls within a primary phase region of ZrO2 in an Al2O3-ZrO2-SiO2 system phase diagram.</description><language>eng ; kor</language><subject>ARTIFICIAL STONE ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; LIME, MAGNESIA ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; REFRACTORIES ; SLAG ; TRANSPORTING ; TREATMENT OF NATURAL STONE</subject><creationdate>2010</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20101112&DB=EPODOC&CC=KR&NR=20100120175A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20101112&DB=EPODOC&CC=KR&NR=20100120175A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKENAMI MASAKO</creatorcontrib><creatorcontrib>AKAMINE KEIICHIRO</creatorcontrib><title>RAW MATERIAL FOR ZIRCONIA/MULLITE REFRACTORY AND PLATE BRICK</title><description>Provided is a zirconia-mullite refractory raw material which is less likely to undergo alternation and microstructural degradation under high-temperature conditions, and low in thermal expansion rate, so as to have thermal shock resistance and corrosion resistance. The zirconia-mullite refractory raw material comprises crystalline zirconia and mullite as primary components, with the remainder being corundum and/or a matrix glass, wherein the crystalline zirconia includes a eutectic zirconia crystal having a grain size of 1.0 μm or less, and has a maximum grain size of 30 μm or less, and the matrix glass is contained in an amount of 5 mass % or less. The zirconia-mullite refractory raw material has a chemical composition comprising 30 to 55 mass % of ZrO2, 30 to 55 mass % of Al2O3 and 10 to 25 mass % of SiO2, wherein each of the chemical components falls within a primary phase region of ZrO2 in an Al2O3-ZrO2-SiO2 system phase diagram.</description><subject>ARTIFICIAL STONE</subject><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>CONCRETE</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2010</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAJcgxX8HUMcQ3ydPRRcPMPUojyDHL29_N01PcN9fHxDHFVCHJ1C3J0DvEPilRw9HNRCPABqlZwCvJ09uZhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfHeQUYGhgYGhkDS3NTRmDhVAKQ5KkQ</recordid><startdate>20101112</startdate><enddate>20101112</enddate><creator>TAKENAMI MASAKO</creator><creator>AKAMINE KEIICHIRO</creator><scope>EVB</scope></search><sort><creationdate>20101112</creationdate><title>RAW MATERIAL FOR ZIRCONIA/MULLITE REFRACTORY AND PLATE BRICK</title><author>TAKENAMI MASAKO ; AKAMINE KEIICHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20100120175A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2010</creationdate><topic>ARTIFICIAL STONE</topic><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>CONCRETE</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKENAMI MASAKO</creatorcontrib><creatorcontrib>AKAMINE KEIICHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKENAMI MASAKO</au><au>AKAMINE KEIICHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>RAW MATERIAL FOR ZIRCONIA/MULLITE REFRACTORY AND PLATE BRICK</title><date>2010-11-12</date><risdate>2010</risdate><abstract>Provided is a zirconia-mullite refractory raw material which is less likely to undergo alternation and microstructural degradation under high-temperature conditions, and low in thermal expansion rate, so as to have thermal shock resistance and corrosion resistance. The zirconia-mullite refractory raw material comprises crystalline zirconia and mullite as primary components, with the remainder being corundum and/or a matrix glass, wherein the crystalline zirconia includes a eutectic zirconia crystal having a grain size of 1.0 μm or less, and has a maximum grain size of 30 μm or less, and the matrix glass is contained in an amount of 5 mass % or less. The zirconia-mullite refractory raw material has a chemical composition comprising 30 to 55 mass % of ZrO2, 30 to 55 mass % of Al2O3 and 10 to 25 mass % of SiO2, wherein each of the chemical components falls within a primary phase region of ZrO2 in an Al2O3-ZrO2-SiO2 system phase diagram.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; kor |
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| subjects | ARTIFICIAL STONE CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE |
| title | RAW MATERIAL FOR ZIRCONIA/MULLITE REFRACTORY AND PLATE BRICK |
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